Sanitary napkin



FIG. 1 is a top plan view of the first variant of a sanitary napkin in accordance with the new design;

FIG. 2 is a top plan view of the second variant; and,

FIG. 3 is a top plan view of the third variant.

The portions of the drawings shown in stippled lines do not form part of the claimed design. The bottoms of the sanitary napkins illustrated in FIGS. 1-3 are flat and devoid of surface ornamentation. The claimed design is directed to the outer perimeter shape of the sanitary napkin illustrated in FIGS. 1-3. 

CLAIM The ornamental design for a sanitary napkin, as shown and described. 